Merge branch 'develop_members' into 'master'

Bug-fix when considering more than 10 members

Hi,

nccf_atm_monthly fails when using more than 10 members as it uses a condition assuming that the member tag (e.g. fc9) is only 3 characters long. This is now changed to a generic case.

@pabretonniere can you merge that?

Cheers,
Omar

See merge request !10